bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 1 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. features ? isolated ? output over v oltage shutdown ? high efficiency ? over temperature protection ? high power density ? ocp/ scp ? fixed frequency (300 khz) ? remote on/off ? low cost ? output voltage trim ? input under - voltage lockout ? positive/negative remote sense ? input o ver - v oltage l ockout ? ul60950 - 1 recognized (ul/cul) applications ? networking ? computers and peripherals ? telecommunications description the 0 r hb - c5t series are isolated dc / dc converter s that operate from a nominal 48 v dc source. th is unit will provide up to 165 w of output power from a nominal 48 v dc input . th is unit is designed to be highly efficient and low cost . it is provided in a n industry standard half - brick package. part sel ection output voltage input voltage max. output current max. output power typical efficiency model number active high model number active low 5.0 v 48 v 30 a 150 w 9 3 .0 % 0 r hb - c5t0 50 0 r hb - c5t0 5 l 3.3 v 48 v 50 a 165 w 9 2 .5 % 0 r hb - c5t03 3 0 r hb - c5t03 l notes : add ?g? suffix at the end of the model number to indicate tray packaging. part number explanation 0 r h b ? c 5 t xx x 1 2 3 4 5 6 7 1 --- thr ough h ole 2 --- rohs 6, change ? r ? to ? 7 ? means rohs 5 3 --- series name, 1/ 2 brick 4 --- series code 5 --- input range 48 v wide (36 - 75v) 6 --- output v oltage 7 --- suffix 0 r hb - c5t series rohs compliant rev. b
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 2 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. absolute maximum ratings parameter min typ max unit notes input voltage ( continuous) - 0 .3 - 8 0 v remote on/off - 0.3 - 18 v i/o isolation voltage - - 2 0 00 v ambient temperature - 40 - 85 ? c storage temperature - 55 - 125 ? c note: ratings used beyond the maximum ratings may cause a rel iability degradation of the converter or may permanently damage the device. input specifications parameter min typ max unit notes input voltage 36 48 75 v input current (full load) v o =5.0 v v o =3.3 v - - - - 5.0 5. 2 a a input current (no load) - 1 20 180 ma remote o ff input current - 5 20 ma input reflected ripple current ( pk - pk ) - 2 0 4 0 ma input reflected ripple current ( rms ) - 5 1 0 ma tested with simulated source impedance of 10 uh , 5 hz to 20 mhz ; use a 100 uf /100 v electrolytic capacitor with esr = 1 ohm max. at 200 k hz at 25 ? c . i 2 t inrush current transient - 0 .05 0. 1 a 2 s turn - on voltage threshold 3 1 - 3 5 v turn - off voltage threshold 2 9 - 3 3 v input over voltage threshold 76 - 80 v note : all specificatio ns are typical at 25 ? c unless oth erwise stated . output specifications parameter min typ max unit notes output voltage set point vo=5.0 v vo=3.3 v 4.925 3.250 5.000 3.300 5.075 3.350 v v vin=48v, io=50% load line regulation vo=5.0 v vo=3.3 v - - ? 5 ? 3 ? 10 ? 7 m v m v load regulation vo=5.0 v vo=3.3 v - - ? 10 ? 7 ? 20 ? 15 m v m v regulation over temperature ( - 40 ? c to + 85 ? c ) vo=5.0 v vo=3.3 v - - ? 45 ? 30 ? 75 ? 50 m v m v output current vo=5.0 v vo=3.3 v 0 0 - - 30 5 0 a a current limit threshold vo=5.0 v vo=3.3 v 32 55 38 65 45 75 a a
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 3 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. output specifications (continued) parameter min typ max unit notes short circuit surge transient - 3 5 a 2 s ripple and noise ( rms ) vo=5.0 v vo=3.3 v - - 2 5 15 5 0 30 mv mv ripple and noise (pk - pk) vo=5.0 v vo=3.3 v - - 70 55 1 40 100 mv mv test conditions: 0 - 20mhz bw, with a 1uf ceramic cap acitor and a 10uf tantalum cap acitor at the output. turn on time - 15 2 0 ms ove rshoot at turn on - 0 5 % output capacitance vo=5.0 v vo=3.3 v 0 0 - - 1000 0 20 000 uf uf transient response overshoot - 25 0 40 0 mv 7 5% ~ 50% max load settling time - 25 0 4 00 us overshoot - 25 0 4 00 mv 50% ~ 7 5% max load settling time vo=5.0 v - 250 4 00 us overshoot - 100 20 0 mv 7 5% ~ 50% max load settling time - 20 0 3 00 m s overshoot - 10 0 200 mv 50% ~ 7 5% max load settling time vo=3.3 v - 200 3 00 m s test conditions : di/dt = 0.1 a/us , vin=48 v with a 1 uf ceramic cap acitor and a 10 uf tantalum cap acitor at the output. note : all specifications are typical at nominal input, full load at 25c unless otherwise stated . general specifications parameter min typ max unit notes efficiency vo=5.0 v vo=3.3 v 90 90 93 .0 92.5 - - % % vin=48v, full load switching frequency 30 0 3 30 3 6 0 khz isolation capacitance - 1500 - pf output voltage trim range 8 0 - 110 % vo over temperature protection - 12 0 - ? c over voltage protection 1 - 1 30 - % vo input to output isolation voltage 2 - - 2000 v weight - 7 6 - g m tbf 1,113,071 h ours calculated per bell core s r - 332 (i o = nominal; t a = 25 ? c) di mensions inches (l w h) millimeters (l w h) 2. 28 x 2.4 x 0. 42 57.51 x 60.98 x 10.67 - note s : all specifications are typical at 25 ? c unless otherwise stated. 1. ovp is tested under 48 vin and full load with photo coupler short. the output will be latched off if the output voltage exceeds over voltage specification. to turn the converter on requires either cycling the on/off pin or powe r to the converter. 2. isolation between input and output is basic isolation, test duration is 60 second s .
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 4 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. control specifications parameter min typ max unit notes remote on/off signal low (unit o n ) - 0.3 - 0.8 v signal high (unit o ff ) active low 2.4 - 1 8 v t he remote on/off pin open, unit o ff . s ignal low (unit o ff ) - 0.3 - 0.8 v signal high (unit o n ) active high 2.4 - 18 v t he remote on/off pin open, unit on. output trim equations e q u a t i o n s f o r c a l c u l a t i n g t h e t r i m r e s i s t o r ( i n k ? ) a r e s h o w n b e l o w . t h e t r i m d o w n r e s i s t o r s h o u l d b e c o n n e c t e d between the trim pin and ground pin . the trim up resistor should be connected between the trim pin and the v out . only one of the resistors should be used for any given application. note s : v o_req=desired(trimmed) output voltage[v] output voltage vo=3.304 v for 3.3 v; vo= 5.008 v for 5 v. efficiency data efficiency curve 70% 74% 78% 82% 86% 90% 94% 5 10 15 20 25 30 35 40 45 50 output current (a) e f f i c i e n c y 36 v 48 v 75 v efficiency curve 70% 74% 78% 82% 86% 90% 94% 5 10 15 20 25 30 output current (a) e f f i c i e n c y 36 v 48 v 75 v 0 r hb - c5t03x 0 r hb - c5t0 5 x ? ? ? ? ? ? ? ? ? k delta vo delta rtrimup 2 225 . 1 5 . 122 ) 100 ( ? ? ? ? ? k delta rtrimdown 2 100 ? ? ? ? % 100 _ ? ? ? vo vo req vo delta module vout trim gnd rtrimdown module vout trim gnd rtrimup
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 5 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. thermal derating curve s 0 r hb - c5t03x 0 r hb - c5t0 5 x r ipple and noise waveforms ripp le and noise at full load 3.3 v /50 a output ripp le and noise at full load 5.0 v/ 3 0 a output note: ripp le and noise at 48 v input, with a 1 uf ceramic cap acitor and a 10 uf t antalum cap acitor at the output and ta=25 deg c .
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 6 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. transient response waveforms vout=3.3 v, 50% to 75% load transients vout=3.3 v, 75% to 50% load transients vout= 5.0 v, 50% to 75% load transients vout= 5.0 v, 75% to 50% load transients note: transient response is tested at di/dt=0. 1 a/us (vo=3.3 v) , di/dt=0. 5 a/us (vo=5.0 v), vin=48 v , ta=25c, with a 1 f ceramic capacitor and a 10 f t antalum cap acitor at the output.
bel fuse inc. 206 van vo rst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 7 isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. mechanical outline note: this module is recommended and compatible with pb - free wave soldering and must be soldered using a peak solder temperature of no more than 26 0 oc for less th a n 5 seconds . note : 1 ) all pins: material - copper alloy ; finish ? 3 micro inches minimum gold over 50 micro inches minimum nickel plate . 2 ) undimensioned components are shown for visual reference only. 3 ) all dimensions in inches (mm) ; tolerances: x.xx +/ - 0.02 in. ( x.x +/ - 0.5mm) x.xxx +/ - 0.010 in. (x.xx +/ - 0.25mm) . pin connections pin# function pin size pin# function pin size 1 - input 0.04" 6 n/a 2 n/a 7 +sense 0.04" 3 on/off 0.04" 8 trim 0.04" 4 +input 0.04" 9 - sense 0.04" 5 +output 0.08" 1 0 n/a 11 - output 0.08"
? 20 1 1 bel fuse inc. specifications subject to change without notice. 0 4 13 11 8 c orporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201 - 432 - 0463 kowloon, hong kong lancashire, pr1 8ud, u.k. fax 201 - 432 - 9542 tel 852 - 2328 - 5515 tel 44 - 1772 - 556601 www.belfuse.com fax 852 - 2352 - 3706 fax 44 - 1772 - 888366 www.belfuse.com www.belfuse.com isolated dc/dc converters 48 v dc input 3.3 v dc / 50 a , 5.0 v dc /30 a output apr . 1 3 , 20 11 bel power inc. , a subsidiary of bel fuse inc. revision history date revi sion changes detail approval 20 10 - 0 4 - 1 3 b updated mtbf. xf jiang rohs com p liance complies with the european directive 2002/95/ec, calling for the elimina tion of lead and other hazardous substances from electronic products.
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